INDEX
Reading edition
PAGE
“Acme” spray nozzle, 151
“Adams-Cutler” distributor, 135
“Aerat” distributor, 145
Apparatus for contact beds, 205
” for dosing tanks, 167
” for measuring flow, 232
” for percolating filters, 106
” for sludge removal, 40
” for sterilisation, 242
Auto-mechanical syphons, 168, 169, 180
Birmingham fixed spray, 155
Candy-Whittaker bacterial tank,60
” ” distributors, 106
Capacity of contact beds, 222
” of detritus tanks, 23
” of effluent settling tanks, 182
” of percolating filters, 222
” of sedimentation tanks, 29
” of storm-water tanks, 227
“Capillary trough” distributor, 146
“Carlton” adjustable fixed spray, 152
“Carlton” distributor, 123
“Carlton rotor” distributor, 121
Chemical mixers, 72
Cleaning gear for spray holes, 119, 122, 125
“Coleman” dosing valve, 168
Columbus fixed spray, 155
Contact beds, 189
” ” apparatus for, 205
” ” capacity of, 222
” ” filling material for, 203
” ” general design of, 190
” ” methods of construction of, 196
” ” ” of distribution on, 199
” ” method of operation of, 191
” ” necessity for testing, 198
” ” sub-drainage of, 201
“Cresset” distributor, 110
Decanting valve, 49
Detritus tanks, 23
” ” capacity of, 23
” ” Dortmund type of, 25
” ” sludge scraper for, 27
Dibdin, W. J., 68, 189
Digby meridioniser, 243
Disc sprays, 155, 157
Distribution by flooding filters, 157, 186
” methods of, 104
Distributors, 106
” cleaning gear for spray holes of, 119, 122, 125
” fixed, 143
” power-driven, 129, 140
” revolving, 106
” travelling, 138
Dortmund tanks, 25, 51, 52
Dosing apparatus, 166
” tanks, 162
” ” disadvantages of, 160
” ” necessity for, 159
Drainage of filters and beds, 90, 201
Ducat filter, 144
Effluent settling tanks, 182
Elliott and Brown, 59
“Facile” distributor, 119
Feed channels, 163
“Fiddian” distributor, 127, 138
Fieldhouse tank, 65
Filtering material, 101
” ” grading of, 103, 204
Fine-grain filters, 185
Fixed distributors, 143
” sprays, 147
Floating arm, 48
Floor-tiles, 91
Gauge weir penstocks, 233
Grading of material, 103, 204
Gravity disc sprays, 155, 157
Grit chambers (see also Detritus Tanks), 23
Haller and Machell, 145
“Hanley” distributor, 140
“Hartley” distributor, 130
“Hodgson” distributor, 127
Humus pits, 182
Hydro-extractor for sludge, 81
Hydrolytic tank, 52
Hypochlorite solutions, 242—247
Imhof tank, 57
Intermitting valves (see Dosing Apparatus)
“Kessel” tank, 63
Lowcock, S. R., 51
Low-draught syphon, 167
Massachusetts Institute of Technology, 155
Material for filters and beds, 101, 185, 203
Measuring apparatus, 232
Non-septic cylinder, 61
Percolating filters, 85
” ” aeration of, 86
” ” capacity of, 222
” ” distributors for, 106
” ” floor-tiles for, 91
” ” floors for, 88
” ” general design of, 85
” ” material for, 101
” ” methods of distribution on, 104
” ” ” of feeding, 159
” ” planning of, 98
” ” sprinklers for, 106
” ” sub-drainage of, 90
” ” types of construction of, 87
” ” walls for, 95
Ponding valve, 178
Power-driven distributors, 129, 140
Precipitation tanks, 47
Preliminary processes (see Tanks, also Slate Beds)
Recording apparatus, 234—239
Revolving distributors, 106
Royal Commission on Sewage Disposal, recommendations, 3, 16, 23, 29, 32, 182, 224, 226, 227
Ryder, E. E., 93
Salford fixed spray, 155
Sand-filters, 185
“Scott-Moncrieff” distributor, 130
Screens, 3
” bars for, 4
” for deep sewers, 7
” mechanical, 7
” ” rake, cleaning gear for, 12, 14
” rotary, 5
” simple, 3
“Separator” tank, 65
Sewage mixers, 73
Shone and Ault, 53
“Simplex” distributor, 125
Skegness tank, 59
Slate beds, 67
” slabs and blocks, 68, 92
Sludge disposal, 71
” draining beds, 83
” drying apparatus, 81
” presses, 75
” pressing plant, complete installation, 77
” removal, 25, 28, 35, 71
”” apparatus for, 27
”” elevators for, 40, 41, 42
”” well for, 38
Spray jets, 147
Sprinklers, 106
Stand-by tanks for storm water, 229
Sterilisation of sewage effluents, 240
Sterilising solutions, 242
”” apparatus for the manufacture of, 242—247
”” ” for the injection of, 247—250
“Stoddart” distributor, 142
Storm-water overflow, diverting plate for, 17
” ” fixed weirs, 17
” ” floating weir, 21
” ” movable weirs, 21
” ” swinging syphon for, 21
” ” weirs, 16
” tanks, capacity of, 227
” treatment, 227
Strength of sewage, 226
Supply pipes, 163
“Sypho-jet” distributor, 110
Tanks, 29
” Candy-Whittaker, 60
” capacity of, 29
” circular, 25, 51—59, 60, 61, 66
” continuous-flow settlement without chemicals, 29, 32
” ” ” ” with chemicals, 29, 32, 47
” decanting valve for, 49
” detritus, 23
” Dortmund type, 25, 51, 52
” Fieldhouse, 65
” floating outlet for, 48
” hydrolytic, 52
” Imhof, 57
” inlets and outlets for, 40—47
” ”Kessel” type, 63
” non-septic, 61
” precipitation, 47
” quiescent settlement without chemicals, 29, 32
” ” ” with chemicals, 29, 32
” rate of flow through, 34
” rectangular, 33, 36, 37, 43—50
” roofs for, 39
” ”separator”, 65
” septic, 29, 32
” Skegness, 59
” storm-water, 229
Taylor, W. Gavin, 105
Travelling distributors, 138
Travis, W. O., 52
Trays and troughs, 143
“Triple tank” system, 145
“Venturi” meter, 237
Walls of filters, 95
Waterbury fixed sprays, 155
Watson, J. D., 93, 130
Weirs, fixed volume, 21
“Whirl” spray jet, 149
Willcox and Raikes, 49, 96, 135